CN205538140U - Underground structure thing atress testing arrangement under power centrifugal test condition - Google Patents
Underground structure thing atress testing arrangement under power centrifugal test condition Download PDFInfo
- Publication number
- CN205538140U CN205538140U CN201620237518.1U CN201620237518U CN205538140U CN 205538140 U CN205538140 U CN 205538140U CN 201620237518 U CN201620237518 U CN 201620237518U CN 205538140 U CN205538140 U CN 205538140U
- Authority
- CN
- China
- Prior art keywords
- underground structure
- connecting rod
- works
- force transmission
- structure thing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 239000002689 soil Substances 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 4
- 229920005479 Lucite® Polymers 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 239000004927 clay Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses an underground structure thing atress testing arrangement under power centrifugal test condition belongs to geotechnological power centrifugal test technical field. The device includes centrifuge, mold box, underground structure thing device, force measuring system, connecting rod and reaction beam. The mold box is installed in the centrifuge hanging flower basket, and the underground structure thing is buried underground in mold box foundation soil internally. Force measuring system guarantees when can realize the test of vertical atress including drawing pressure gauge and bulb bearing that underground structure thing level is to free motion. Draw pressure gauge and underground structure thing device to link together, it is together fixed with reaction beam that the bulb bearing passes through the connecting rod. It is fixed with the mold box that reaction beam passes through the bolt. The utility model discloses device structure is simpler, extensive applicability, the facilitate promotion, solved the process of the test in the pipe clay displacement coordinate the problem.
Description
Technical field
This utility model belongs to power centrifugal test technical field, and under the conditions of being specifically related to a kind of hypergravity, buried works is vertically subject to
Force test device.
Background technology
Along with the quickening of urbanization process, subway, tunnel and all kinds of construction of underground structure have become inexorable trend.In recent years,
Under severe earthquake action, in Liquefaction Ground, the destruction problem of works starts to highlight, and wherein floating deformation is one of main damage form.Logical
Overtesting reproduces the floating deformation of earthquake liquefaction treatment of the earth thing, studies its force-mechanism, contributes to guaranteeing underground knot under geological process
The safety of structure thing.
Geotechnique's power is centrifuged function reduction stress-strain field, directly reproduces earthquake operating mode, is underground structure under Study of Seismic effect
The effective tool of stress deformation characteristic.But, the most not yet there is the underground structure vertical applied force test dress that can be used for centrifuge
Putting, on the one hand being because underground structure is normally at below waterline, and force transducer water resistance is not good enough, easily damages；Separately
On the one hand, by the rigidly connected restriction of device for measuring force, in process of the test, underground structure can not move freely in the horizontal direction, pipe
Soil displacement is inharmonious, and there is some difference with real response for experimental test result.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, it is provided that underground structure under the conditions of a kind of power centrifugal test
Forces testing device.
The purpose of this utility model is achieved through the following technical solutions: underground structure under the conditions of a kind of power centrifugal test
Forces testing device, including centrifuge, model casing, underground structure device, dynamometric system, connecting rod and reaction beam.Institute
The model casing stated is installed in centrifugal basket, is equipped with foundation soil body in model casing, is embedded with underground structure dress in foundation soil body
Put.Being provided with intake tunnel bottom described model casing, in the case of intake tunnel, water outlet is provided with permeable stone.Described underground structure
Thing device includes works, works force transmission ring and works connecting rod three part；Works force transmission ring is enclosed within underground structure
Outside, works connecting rod is mechanically connected with works force transmission ring.Described reaction beam is a rectangular steel plates, is fixed on model casing.
Described dynamometric system includes pressure meter and bulb bearing.Pressure meter and bulb bearing are connected by Lengthened bolt；Pressure meter
Linking together with underground structure device, bulb bearing is fixed together with reaction beam by connecting rod.
Further, described foundation soil body material is sand, and the kind of sand is selected according to concrete experimental condition
Further, described underground structure material is aluminum, steel, concrete, pvc or lucite etc., material and shape
Design according to test situation.Works force transmission ring internal diameter is than underground structure external diameter big 0.5～1mm, and works force transmission ring top is opened
Having diameter 10mm screw, works connecting rod is mechanically connected with works force transmission ring by this screw, works connecting rod diameter
10mm.Works force transmission ring and works connecting rod material need to meet from the big requirement of heavy and light and rigidity.
Further, described pressure meter need to be installed on outside foundation soil body, it is to avoid intakes in process of the test；Ball head is forwarded
Dynamic angle need to be unrestricted with underground structure horizontal displacement during guarantee test more than 15 °.
Further, described corresponding position, reaction beam two ends has screw, by bolt and the mould of 4 a diameter of 12mm
Molding box is fixed；Reserving hole in the middle part of Tong Shi, with fixed connecting rod.
Compared with prior art, the beneficial effects of the utility model are:
(1) simple in construction of the present utility model, strong operability, easy accessibility, and it is prone to transformation, it is simple to promote the use of.
(2) this utility model is applicable to the ground of multiple soil property type.
(3) underground structure device is separate with device for measuring force, and force transducer is installed on outside foundation soil body, can avoid examination
Sensor water inlet during testing, bulb bearing can ensure that underground structure level is to displacement freely so that result of the test is closer to very
Truth condition.
(4) this equipment principle is simple, can be used for different size, different embedding position, difform underground structure are vertically subject to
Power testing experiment.
Accompanying drawing explanation
Fig. 1 is top view of the present utility model；
Fig. 2 is A-A profile of the present utility model；
Fig. 3 is B-B profile of the present utility model；
Fig. 4 is dynamometric system detail of construction；
Fig. 5 is centrifuge operation principle schematic diagram；
In figure: centrifuge 1；Centrifugal basket 1-1；Centrifuge vibration table 1-2；Model casing 2；Model casing intake tunnel 2-1；Thoroughly
Water stone 2-2；Foundation soil body 3；Underground structure device 4；Underground structure 4-1；Works force transmission ring 4-2；Works connecting rod
4-3；Dynamometric system 5；Pressure meter 6；Bulb bearing 7；Connecting rod 8；Reaction beam 9.
Detailed description of the invention
With embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, 3, this utility model is underground structure forces testing device under the conditions of power centrifugal test, including
Centrifuge 1, model casing 2, underground structure device 4, dynamometric system 5, connecting rod 8 and reaction beam 9.
Described model casing 2 is installed on the centrifuge vibration table 1-2 in centrifuge 1 hanging basket 1-1, and in model casing 2, preparation has
Foundation soil body 3, is embedded with underground structure device 4 in foundation soil body 3.Foundation soil body 3 material is sand, the kind of sand according to
Concrete experimental condition is selected.
Being provided with intake tunnel 2-1 bottom described model casing 2, passage is provided with switch.Water outlet peace in the case of intake tunnel 2-1
Equipped with permeable stone 2-2, can prevent foundation soil body 3 from blocking intake tunnel 2-1.
Described underground structure device 4 includes underground structure 4-1, works force transmission ring 4-2 and works connecting rod 4-3 tri-
Part.Underground structure 4-1 material is aluminum, steel, concrete, pvc or lucite etc., and material selects according to test situation.
Works force transmission ring 4-2 is outside underground structure 4-1, and its internal diameter is than underground structure 4-1 external diameter big 0.5～1mm, works
Force transmission ring 4-2 top has diameter 10mm screw, and works connecting rod 4-3 is by this screw and works force transmission ring 4-2 machinery
Connect, works connecting rod 4-3 diameter 10mm.Force transmission ring 4-2 and connecting rod 4-3 material need to meet big etc. from heavy and light and rigidity
Requirement.
As shown in Figure 4, described dynamometric system 5 includes pressure meter 6 and bulb bearing 7.Pressure meter 6 and bulb bearing 7
Connected by Lengthened bolt；It is outside that described pressure meter 6 is installed on foundation soil body 3, it is to avoid sensor water inlet in process of the test；
Spherical rod member in bulb bearing 7 is free to rotate, and rotational angle need to can guarantee that underground structure in process of the test more than 15 °
4-1 horizontal displacement is unrestricted.Pressure meter 6 lower end links together with underground structure device 4, and bulb bearing 7 top leads to
Cross connecting rod 8 to be fixed together with reaction beam 9.
Described reaction beam 9 be root length 40cm, sectional dimension be the steel plate of 3cm × 12mm, corresponding position, steel plate two ends is opened
There are 4 screws, fixed with model casing 2 by the bolt of a diameter of 12mm；Reserving hole in the middle part of steel plate, with fixed connecting rod
7。
Utility model works principle is as follows:
In model casing 2, foundation soil body 3 material is prepared before Shi Yan, when foundation soil body 3 reaches underground structure design buried depth,
Place underground structure device 4, then cover residue foundation soil body 3.After soil body preparation, model casing 2 is placed in vacuum environment
Under, the intake tunnel 2-1 bottom model casing 2 is slowly introducing fluid media (medium), until liquid level is big higher than foundation soil body 3 simultaneously
About about 10mm；After saturated, model casing 2 is transferred out vacuum environment, completes to test the preparation of ground, front court model.Will
Dynamometric system 5 is fixed together with connecting rod 8, and confirms that bulb bearing 7 is free to rotate.Installed above instead at model casing 2
Power beam 9, is placed in predetermined hole location by dynamometric system 5 and connecting rod 8 subsequently, and pressure meter 6 is connected with works
Bar 4-3 fixes with adding long nut, as shown in Figure 2,3, 4.
As it is shown in figure 5, be arranged on by model casing 2 on the Centrifugal vibration platform 1-2 of centrifuge 1 hanging basket 1-1, connect data acquisition
After collection instrument, open centrifuge 1 and test.After on-test, centrifuge accelerates to 30g step by step, after stable about 30 minutes,
Start to apply earthquake motion successively.Twice actuation duration interval is about 30min～60min, is specifically entirely mark with pore pressure dissipation.
In process of the test, bulb bearing 7 can ensure that underground structure 4-1 vertically fixes, and horizontal direction is freely-movable；Pressure meter 6
The vertical applied force situation of change of underground structure 4-1 during earthquake liquefaction can be measured in real time.After vibration, shut down, examination
Test end.
Claims (5)
1. underground structure forces testing device under the conditions of a power centrifugal test, it is characterised in that include centrifuge (1),
Model casing (2), underground structure device (4), dynamometric system (5), connecting rod (8) and reaction beam (9)；Described mould
Molding box (2) is installed in centrifugal basket (1-1), is equipped with foundation soil body (3), foundation soil body (3) in model casing (2)
In be embedded with underground structure device (4)；Described model casing (2) bottom is provided with intake tunnel (2-1), intake tunnel (2-1)
Case in water outlet permeable stone (2-2) is installed；Described underground structure device (4) includes underground structure (4-1), knot
Structure thing force transmission ring (4-2) and works connecting rod (4-3) three part；Works force transmission ring (4-2) is enclosed within underground structure
(4-1) outside, works connecting rod (4-3) is mechanically connected with works force transmission ring (4-2)；Described reaction beam (9) is square
Shape steel plate, is fixed on model casing (2)；Described dynamometric system (5) includes pressure meter (6) and bulb bearing (7)；Draw
Piezometer (6) and bulb bearing (7) are connected by Lengthened bolt；Pressure meter (6) is with underground structure device (4) even
Being connected together, bulb bearing (7) is fixed together with reaction beam (9) by connecting rod (8).
Underground structure forces testing device under the conditions of power centrifugal test the most according to claim 1, it is characterised in that institute
Foundation soil body (3) material stated is sand.
Underground structure forces testing device under the conditions of power centrifugal test the most according to claim 1, it is characterised in that institute
Underground structure (4-1) material stated is aluminum, steel, concrete, pvc or lucite；Works force transmission ring (4-2) internal diameter
Ratio underground structure (4-1) external diameter big 0.5～1mm, works force transmission ring (4-2) top has diameter 10mm screw, knot
Structure thing connecting rod (4-3) is mechanically connected with works force transmission ring (4-2) by this screw, works connecting rod (4-3) diameter
10mm。
Underground structure forces testing device under the conditions of power centrifugal test the most according to claim 1, it is characterised in that institute
It is outside that the pressure meter (6) stated is installed on foundation soil body (3)；Bulb bearing (7) rotational angle is more than 15 °.
Underground structure forces testing device under the conditions of power centrifugal test the most according to claim 1, it is characterised in that institute
Reaction beam (9) corresponding position, two ends stated has screw, solid with model casing (2) by the bolt of four a diameter of 12mm
Fixed；Reserving hole in the middle part of Tong Shi, with fixed connecting rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620237518.1U CN205538140U (en) | 2016-03-25 | 2016-03-25 | Underground structure thing atress testing arrangement under power centrifugal test condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620237518.1U CN205538140U (en) | 2016-03-25 | 2016-03-25 | Underground structure thing atress testing arrangement under power centrifugal test condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538140U true CN205538140U (en) | 2016-08-31 |
Family
ID=56783843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620237518.1U Expired - Fee Related CN205538140U (en) | 2016-03-25 | 2016-03-25 | Underground structure thing atress testing arrangement under power centrifugal test condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205538140U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806575A (en) * | 2016-03-25 | 2016-07-27 | 浙江大学 | Device for measuring force on subsurface structure under dynamic centrifuge test conditions |
| CN106500941A (en) * | 2016-11-02 | 2017-03-15 | 同济大学 | Small two-dimension vibration test platform |
| CN105806575B (en) * | 2016-03-25 | 2019-07-16 | 浙江大学 | Underground structure forces testing device under the conditions of power centrifugal test |
-
2016
- 2016-03-25 CN CN201620237518.1U patent/CN205538140U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806575A (en) * | 2016-03-25 | 2016-07-27 | 浙江大学 | Device for measuring force on subsurface structure under dynamic centrifuge test conditions |
| CN105806575B (en) * | 2016-03-25 | 2019-07-16 | 浙江大学 | Underground structure forces testing device under the conditions of power centrifugal test |
| CN106500941A (en) * | 2016-11-02 | 2017-03-15 | 同济大学 | Small two-dimension vibration test platform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104458529B (en) | Unsaturated soil rain infiltration simulation test device in a kind of multifunctional room | |
| CN207675405U (en) | A kind of experimental rig of mud-rock-flow-impact bridge pier | |
| CN108387714A (en) | A kind of high-speed shadowgraph technique simulation test device and test method | |
| CN104237486B (en) | A kind of closing boring Mining failure simulation test device | |
| Zhou | Tunnelling-induced ground displacements in sand | |
| CN202974813U (en) | Indoor testing device for seepage characteristics of jointed rock mass | |
| CN205786605U (en) | A kind of this coal bed gas extraction experimental simulation device | |
| CN107179391B (en) | A kind of experimental rig burying under-traverse tunnel shallow layer grouting for an ultra shallow | |
| CN107436140A (en) | The settling column test instrument and test method that vacuum preloading and piling prepressing are combined | |
| CN105544494A (en) | Temperature-controllable salt leaching-adding soil test device and method for testing soil sample by using same | |
| CN204924802U (en) | Simple and easy consolidation test device that clay layer warp is sent to indoor simulation extraction pressure -bearing water | |
| CN108593513A (en) | A kind of experimental rig and method for simulating the dynamic artesian water effect soil body | |
| CN204536237U (en) | A kind of Freezing Soils hydro-thermal power comprehensive test system | |
| CN205538140U (en) | Underground structure thing atress testing arrangement under power centrifugal test condition | |
| CN108387710A (en) | A kind of experimental rig and method for simulating the rectangle head boundary effect soil body | |
| CN107993549A (en) | Earthquake triggering underwater landslide disaster simulation test platform | |
| CN118209434A (en) | High-temperature high-pressure true triaxial shale fracture slip testing device and testing method | |
| CN105738227A (en) | Anti-anchoring experimental device of submarine pipelines under enrockment protection layer | |
| CN202522434U (en) | Acoustical property detection and simulation device for structure under oil well | |
| CN108267370A (en) | A kind of one-dimensional cylinder test device and method for simulating the kinetic head boundary effect soil body | |
| CN207992203U (en) | A kind of experimental rig for simulating the rectangle head boundary effect soil body | |
| CN105806575B (en) | Underground structure forces testing device under the conditions of power centrifugal test | |
| CN105806575A (en) | Device for measuring force on subsurface structure under dynamic centrifuge test conditions | |
| CN207992002U (en) | A kind of experimental rig for simulating the dynamic artesian water effect soil body | |
| CN206220137U (en) | A kind of experimental provision for measuring and analyzing banket steel-pipe pile sedimentation and emergent property |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20210325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |